Since Zoro is trapped with Perona, my first assumption is he learns how to cut the insubstantial ghosts. That would grant him a metaphysical cutting skill, allowing hitting various fruit users, just like Rayleigh can.

Quote Originally Posted by Penner
I'm mostly interested in seeing what Zoro and Brook are doing.
Now that you mentioned him, Brook's whereabouts certainly were interesting. I had forgotten all about him.